<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 头像 -->
      <div class="avatar_box">
        <img
          src="../assets/logo.png"
          alt=""
        >
      </div>

      <el-form
        ref="loginFormRef"
        label-width="0px"
        class="login_form"
        :model="loginForm"
        :rules="loginFormRules"
      >
        <!-- 登录 用户名 -->
        <el-form-item prop="username">
          <el-input
            prefix-icon="iconfont icon-user"
            v-model="loginForm.username"
            type="username"
          ></el-input>
        </el-form-item>

        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input
            prefix-icon="iconfont icon-3702mima"
            v-model="loginForm.password"
            type="password"
          ></el-input>
        </el-form-item>
        <!-- 登录 -->
        <el-form-item class="btns">
          <el-button
            type="primary"
            @click="login"
          >登录</el-button>
          <!-- 重置 -->
          <el-button
            type="info"
            @click="resetLoginForm"
          >重置</el-button>
        </el-form-item>
      </el-form>

    </div>
  </div>
</template>

<script>
export default {
  data () {
    return {
      // 这是登陆的表单的捆绑
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      loginFormRules: {
        //   验证用户名密码
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    //   重置按钮点击触发函数
    resetLoginForm () {
      this.$refs.loginFormRef.resetFields()
    },
    login () {
      this.$refs.loginFormRef.validate(async valid => {
        if (!valid) return
        var { data: res } = await this.$http.post('login', this.loginForm)
        console.log(res)
        if (res.meta.status !== 200) return this.$message.error('登陆失败')
        this.$message.success('登陆成功，欢迎您')
        // 保存token到sessionStorage中
        window.sessionStorage.setItem('token', res.data.token)
        // 跳转到主页
        this.$router.push('/home')
      })
    }
  }
}
</script>

<style lang="less" scoped>
.login_container {
  background-color: #ff8500;
  height: 100%;
}
.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 5px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);

  .avatar_box {
    height: 135px;
    width: 135px;
    border: 3px solid white;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #eee;
    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
    }
  }
}

.login_form {
  position: absolute;
  width: 100%;
  bottom: 0;
  padding: 0 10px;
  box-sizing: border-box;
}

.btns {
  display: flex;
  justify-content: flex-end;
}
</style>
